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13013022 = 2311712777
BaseRepresentation
bin110001101001…
…000000011110
3220111010111210
4301221000132
511312404042
61142525250
7215415561
oct61510036
926433453
1013013022
117388970
124436826
132908119
141a2a4d8
151220a9c
hexc6901e

13013022 has 32 divisors (see below), whose sum is σ = 28802304. Its totient is φ = 3886400.

The previous prime is 13012999. The next prime is 13013023. The reversal of 13013022 is 22031031.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13012989 and 13013007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13013023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3298 + ... + 6074.

It is an arithmetic number, because the mean of its divisors is an integer number (900072).

Almost surely, 213013022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13013022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14401152).

13013022 is an abundant number, since it is smaller than the sum of its proper divisors (15789282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13013022 is a wasteful number, since it uses less digits than its factorization.

13013022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2864.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 13013022 is about 3607.3566499585. The cubic root of 13013022 is about 235.2119530345.

Adding to 13013022 its reverse (22031031), we get a palindrome (35044053).

Subtracting 13013022 from its reverse (22031031), we obtain a square (9018009 = 30032).

The spelling of 13013022 in words is "thirteen million, thirteen thousand, twenty-two".

Divisors: 1 2 3 6 11 22 33 66 71 142 213 426 781 1562 2343 2777 4686 5554 8331 16662 30547 61094 91641 183282 197167 394334 591501 1183002 2168837 4337674 6506511 13013022